The guy who gave these one star is wrong. These balls are 5 inches in circumference, which makes them about a 1/4" smaller than a regulation golf ball. I really like using them as a practice golf ball and hit them with a wedge in my back yard several times a week. I find that they are durable, fly true of the club and will only go about 30 yards max. I have developed a real knack around the greens by practicing with these balls in my back yard. I now almost always get up and down. They take a beating and allow nice full swings with any club, though they work better with irons. I like the softness of the balls compared to other practice balls made of hard plastic. They also work great when used for focused baseball/softball hitting drills.

I was expecting softball size wiffle balls. These were golf ball size. They were not 5" diameter or circumference. I don't know where they even got that measurement from. I was very disappointed and returned product.